Alternating current rectifying circuit and alternating current rectifying method for driving light-emitting diode (LED) module

A technology of LED module and rectifier circuit, which is applied in the direction of electric lamp circuit arrangement, electric light source, lighting device, etc., can solve the problems of reducing the service life of the LED module, flickering of the LED module, and low stability of the output voltage, etc.
CN103152913AActive Publication Date: 2013-06-12四川能投智慧光电有限公司
4 Cites 8 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
四川能投智慧光电有限公司
Publication Date
2013-06-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses an alternating current rectifying circuit and an alternating current rectifying method for driving a light-emitting diode (LED) module. The method comprises that after an alternating current is rectified, and the rectified alternating current is output to a positive half cycle rectifying branch circuit of the LED module when an alternating current module is in a positive half cycle. When the alternating current module is in a negative half cycle, charging is carried out according to the alternating current output by the alternating current module, and when the alternating current module is in the positive half cycle, electro-discharge is carried out, and the alternating current is output to a negative half cycle rectifying branch circuit of the LED module. When the alternating current module is in the negative half cycle, the alternating current is rectified, and the alternating current is output to a positive half cycle rectifying branch circuit of the LED module. When the alternating current module is in the negative half cycle, the electro-discharge is carried out, and the alternating current is output to a negative half cycle feed branch circuit of the LED module. When an output voltage signal is higher than a preset voltage threshold value, an overvoltage protection branch circuit of the LED module is shut off. By means of the alternating current rectifying circuit, stability of output voltage can be improved, and luminous efficiency of the LED module is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an alternating current rectification technology, in particular to an alternating current rectification circuit and an alternating current rectification method for driving a light emitting diode (LED, Light Emitting Diode) module. Background technique

[0002] As a new high-efficiency light source, LED (Light Emitting Diode) module is widely used in lighting in commercial, industrial and household fields due to its advantages of long life, low energy consumption, energy saving and environmental protection.

[0003] When the LED module is used as the light source of the lighting device, the life of the lighting device not only depends on the luminous performance of the LED, but also depends on the stability of the driving circuit components that provide the working voltage of the LED module. In the current application scheme, the bottleneck of LED module life is still the voltage stability provided by the driving circuit. In ord...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More